Jaradan probe

From Memory Alpha, the free Star Trek reference

The Jaradan probe was a long-range probe that was sent by the insect-like Jarada.

The probe encountered the USS Enterprise-D and caused a malfunction in the Holodeck safety protocol. This malfunction nearly proved fatal when 20th century Historian Whalen was shot by Felix Leech of the Dixon Hill series. (TNG: "The Big Goodbye")